In this work, hot electron dynamics of Al(In)GaN/Ga(In)N HEMT structures were studied both experimentally and theoretically. In the experimental part, the samples were firstly grown by Metal Organic Chemical Vapor Deposition ...

Current-transport mechanisms were investigated in Schottky contacts on AlInN/AlN/GaN single channel (SC) and AlInN/AlN/GaN/AlN/GaN double channel (DC) heterostructures. A simple model was adapted to the current-transport ...

Optical properties of high-quality melt-grown and vapor-grown ZnO crystals are reported. The reflection and emission spectra of samples which are post-treated at different gas environment are compared. For both samples, ...

In this work, InGaN/GaN Multi Quantum Well based blue/UV LEDs have been investigated. The samples were grown by Metal Organic Chemical Vapor Deposition (MOCVD) on sapphire substrate and then characterized by High Resolution ...

This thesis purpose to improve the quantum efficiencies for InGaN/GaN heterostructure and quantum wells. From this perspective, different growth approaches and structural designs were investigated to identfy and address ...

We report on the optimization of the hot electron tunable wavelength surface
light emitting device developed by us. The device consists of a p-GaAs, and nGa1−xAlxAs heterojunction containing an inversion layer on the p- ...

Transient photocapacitance (TPC) measurements were performed to investigate deep centers in GaN/AlGaN multiple quantum wells. The influence of the persistent photovoltaic effect was successfully separated during the TPC ...

We report on interference peaks in double axis x-ray rocking curves of tunable wavelength hot electron light emitters. The device is based on a p-GaAs and n-Ga1−xAlxAs heterojunction containing an
inversion layer on the ...

In this study, the Hall effect measurement of graphene on SiC substrate was carried out as a function of temperature (12-300 K). Hall data were first analyzed to extract the temperature dependent mobilities and carrier ...

In this work, transport properties of Al(In)GaN/Ga(In)N two-dimensional electron gas (2DEG) heterostructures were studied experimentally and theoretically. In experimental part, the samples were firstly grown by Metal ...